Yamaha USB-MIDI driver fails during installation (error code 25001 Device Not Connected)


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SeaGtGruff

I meant to play that note!
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Okay. I've heard of other cases-- not necessarily involving USB-MIDI keyboards-- where the USB ports stopped working as expected after reinstalling or updating Windows. I know you said that the other "plug & play" device is working, but if the computer isn't recognizing the PSR-I425 as it should then it might be due to a similar sort of situation. Try the trouble-shooting steps recommended in the following article and see if they help:

 
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I am having the same error, keyboard not found. Tried several USB cables, one very high quality one I use for PC->DAC, and three different Windows 10 PCs, bot x32 and x64. Looking at device properties, everything seem to be OK, except in 'events' :

Device SWD\MMDEVAPI\MIDII_33C0FB4F.P_0000 was not migrated due to partial or ambiguous match.

Last Device Instance Id: SWD\RADIO\{047203F0-830A-4BAE-BB23-7DE1F20980FD}
Class Guid: {62f9c741-b25a-46ce-b54c-9bccce08b6f2}
Location Path:
Migration Rank: 0xF000FFFF0000F120
Present: false
Status: 0xC0000719
 

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